rivalry vs squabble

rivalry

noun
  • Any competition between two or more things or factors. 

  • The characteristic of being a rivalrous good, such that it can be consumed or used by only one person at a time. 

  • An ongoing relationship between (usually two) rivals who compete for superiority. 

squabble

noun
  • A minor fight or argument. 

verb
  • To disarrange, so that the letters or lines stand awry and require readjustment. 

  • To participate in a minor fight or argument; to quarrel. 

How often have the words rivalry and squabble occurred in a corpus of books? (source: Google Ngram Viewer )